2000 Windstar Lock Wire Resistance

I am installing a Crimestopper LC-00 remote starter in a 2000 Windstar. I know the van is a high current starter but I am using a relay so the low current remote starter only runs a relay coil. The LC-00 has a green wire that hooks to a negative lock circuit to sense the three lock pulses so the factory remote can start the van. The negative lock wire on the van is light blue/orange. When I tie the green wire into the light blue/orange wire the LC-00 goes nuts and the internal relay cycles on and off and the light cycles on and off as long as the wire is connected. It acts like it is seeing constant lock button presses but the locks aren't locking and they shouldn't. When I unhook the green wire and touch it to ground 3 times to simulate the lock pulses the van starts as it should. When I ground the light blue/orange wire the locks lock as they should. When I read the light blue/orange wire to ground I have 32.3 megohms of resistance. When the lock button is pressed I have 0 ohms. Shouldn't the factory lock wire show open until the lock button is pressed? Is there any way to get rid of the resistance to ground on the factory negative lock wire?

The common way to connect a Add-On R/S system like the Crimestopper LC-00 is with the driver door lock motor wire.  This wire

will provide a (+) pulse with each factory FOB lock command.  While some Add-On R/S systems have a (+) R/S Activation Input, theLC-00 only has a (-) R/S Activation Input.  A relay will be needed to convert the (+) Lock Motor pulse to a (-) signal the LC-00 needs.

Here is a note from Page 7 of the LC-00 Install Guide :

2. Connect the Green input wire to the Negative lock signal wire of the factory system. If your Factory OEM system

does not have this type of signal, then a relay is required.

Here is the relay wiring :

Relay Pin 86 to Windstar LOCK MOTOR WIRE  RED / ORANGE (+)  @ FEM, 26-Pin Plug ( through 1 Amp fuse )Relay Pin 85 and 87 to chassis groundRelay Pin 30 to LC-00 GREEN (-) START ACTIVATION INPUT

Soldering is fun!

I can handle the relay wiring. I didn't think to use the lock motor power instead of ground to trip the relay, stupid me. Thanks for your help!